do you think this would be a disaster?

[giants4pc]

My current sump/stand holds a 75 gallon acrylic tank. Do you think if I upgraded to a 90 glass it would be too much for the stand. I know it's strong but I'm not sure exactly how much more weight that will bring.

[frederickk]

Is it a wood stand, metal stand?

[giants4pc]

stand is actually acrylic. The stand is a sump. The tank sits on top and drains into it. I finally have it the way I like and that's why I have to keep the stand. I want to upgrade, but not at the risk of disaster.

[CeeGee]

That isn't very much of an upgrade and I don't think it would be worth the trouble or risk.

But that is just my opinion.

[Sk8r]

I had one such stand/sump that, as it aged, did show a little bow in it. We no longer have it. I really advise against it unless you 'shell' it in sturdy wood (oak ply, suitably protected against water, for instance) and simply incorporate it into the design.

[giants4pc]

I know what you mean but the outside has been tailor-made with oak to cover the original black acylic. I wouldn't really be able to do anything with that. The total increase in weight would be about another 120lbs in water with the 15 extra gallons + the difference in weight between the acrylic and glass. Although increasing from a 75 to a 90 doesn't seem like much, I want to do it more for the current condition of the tank rather than the side. The acrylic is old and despite refinishing it, it still has a haze to it. I want that cystal clean look.

[davocean]

I lean towards the cautious side.
Glass on top of something that may flex sounds scary.
You could have complete disaster.
I would at least make a frame with 2x4's and ply top if you can.

[johnq]

I see a flood in your future

[afishyonados]

Don't do it.

[giants4pc]

don't get me wrong, the stand is solid. I mean, I see 90's atop pine stands all the time. This is much stronger than that.

[davocean]

If that stand bows or flexes, you just may get that crystal clear look!
There's nothing worse than seeing a fellow reefer posting pics of broken glass, dead fish, flooded house, and a broken heart!

[phil5613]

My first question is what are you gaining with the 90 other then a few inches height? The 75 is a great tank and the height difference isnt worth the risk. Not to mention then its going to need more lighting punch, longer arms to clean and more rock to aquascape the height difference. I say stay with the 75 and spend the cash on the contents rather then the box. ENJOY THE GOODIES

[giants4pc]

but you would be content with a hazy scratched tank? Or, are you saying to replace the tank but stay with the same size to be safe?

[giants4pc]

by the way, here is what I am talking about.

http://i24.photobucket.com/albums/c35/giants4pc/P1010061.jpg
http://i24.photobucket.com/albums/c35/giants4pc/P1010060.jpg
http://i24.photobucket.com/albums/c35/giants4pc/P1010059.jpg
http://i24.photobucket.com/albums/c35/giants4pc/P1010057.jpg
http://i24.photobucket.com/albums/c35/giants4pc/P1010056.jpg

[phil5613]

I like the way it looks I would just stay with the 75 gal size

[davocean]

Can you get an ACRYLIC 90, rather than glass?

[giants4pc]

what company makes the acrylic 90? Is is a significant weight difference?

[davocean]

Not so much for weight, although it would be lighter than glass.
I would be more concerned with flex of your acrylic stand.
It's hard to tell from just a photo, but I'm not sure that stand is going to give the support you need for glass.
If you could get a 90 acrylic with the same footprint that would work.

[Bippus]

Try calculating the extra weight you are going to be adding, and then setting it on top of your hood for a while. That way you can see what will happen before you spend the $$ on a new tank. Even if you get some bowing it looks like it would be fairly easy to put in some extra support for your upgrade.

[tisso]

dont risk it !!!! i had a 6ft x 2ft x 2ft tank burst on me and its not a nice experiance to go through !!